Failure to register a vehicle on time results in a $25 per month late fee, after a one‑month grace period, up to $100 total. Certain exemptions are provided for vehicles that are:
- used for operating a commercial business and were idled for a full registration period;
- owned by military personnel serving outside Colorado when the grace period for renewal has passed and the vehicle is not operated on a public highway until re‑registration; and
- stolen, and the registration expired during the time, or duration of, the theft.